Japanese company O.S. introduce their latest competition buggy engine in the form of the B2101. Based on the experience gained with the 21XZ series the square bore/stroke engine is of a new design that allows for a more controllable bottom to mid range power, resulting in improved vehicle control. The B2101 makes use of a new crankshaft that comes with a special coating and it is tungsten balanced while a redesigned cooling head lowers the centre of gravity. The motor will not replace O.S.’s Speed 21XZ-B Spec.II as this will still be available for all drivers who seek the ultimate in bottom end power. The B2101 is set for an October release following the World Championships in Sicily.